diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rwxr-xr-x | scripts/gensyscalls.sh | 102 |
2 files changed, 103 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 958e05b27f..45d48992b1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2450,6 +2450,7 @@ F: default-configs/*-linux-user.mak F: scripts/qemu-binfmt-conf.sh F: scripts/update-syscalltbl.sh F: scripts/update-mips-syscall-args.sh +F: scripts/gensyscalls.sh Tiny Code Generator (TCG) ------------------------- diff --git a/scripts/gensyscalls.sh b/scripts/gensyscalls.sh new file mode 100755 index 0000000000..b7b8456f63 --- /dev/null +++ b/scripts/gensyscalls.sh @@ -0,0 +1,102 @@ +#!/bin/sh +# +# Update syscall_nr.h files from linux headers asm-generic/unistd.h +# +# This code is licensed under the GPL version 2 or later. See +# the COPYING file in the top-level directory. +# + +linux="$1" +output="$2" + +TMP=$(mktemp -d) + +if [ "$linux" = "" ] ; then + echo "Needs path to linux source tree" 1>&2 + exit 1 +fi + +if [ "$output" = "" ] ; then + output="$PWD" +fi + +upper() +{ + echo "$1" | tr "[:lower:]" "[:upper:]" | tr "[:punct:]" "_" +} + +qemu_arch() +{ + case "$1" in + arm64) + echo "aarch64" + ;; + *) + echo "$1" + ;; + esac +} + +read_includes() +{ + arch=$1 + bits=$2 + + cpp -P -nostdinc -fdirectives-only \ + -D_UAPI_ASM_$(upper ${arch})_BITSPERLONG_H \ + -D__BITS_PER_LONG=${bits} \ + -I${linux}/arch/${arch}/include/uapi/ \ + -I${linux}/include/uapi \ + -I${TMP} \ + "${linux}/arch/${arch}/include/uapi/asm/unistd.h" +} + +filter_defines() +{ + grep -e "#define __NR_" -e "#define __NR3264" +} + +rename_defines() +{ + sed "s/ __NR_/ TARGET_NR_/g;s/(__NR_/(TARGET_NR_/g" +} + +evaluate_values() +{ + sed "s/#define TARGET_NR_/QEMU TARGET_NR_/" | \ + cpp -P -nostdinc | \ + sed "s/^QEMU /#define /" +} + +generate_syscall_nr() +{ + arch=$1 + bits=$2 + file="$3" + guard="$(upper LINUX_USER_$(qemu_arch $arch)_$(basename "$file"))" + + (echo "/*" + echo " * This file contains the system call numbers." + echo " * Do not modify." + echo " * This file is generated by scripts/gensyscalls.sh" + echo " */" + echo "#ifndef ${guard}" + echo "#define ${guard}" + echo + read_includes $arch $bits | filter_defines | rename_defines | \ + evaluate_values | sort -n -k 3 + echo + echo "#endif /* ${guard} */" + echo) > "$file" +} + +mkdir "$TMP/asm" +> "$TMP/asm/bitsperlong.h" + +generate_syscall_nr arm64 64 "$output/linux-user/aarch64/syscall_nr.h" +generate_syscall_nr nios2 32 "$output/linux-user/nios2/syscall_nr.h" +generate_syscall_nr openrisc 32 "$output/linux-user/openrisc/syscall_nr.h" + +generate_syscall_nr riscv 32 "$output/linux-user/riscv/syscall32_nr.h" +generate_syscall_nr riscv 64 "$output/linux-user/riscv/syscall64_nr.h" +rm -fr "$TMP" |